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CVE-2026-96257— Fast FAC1203R Gigabit Edition Device Discovery Service copy_msg_element stack-based overflow

Quick assessment

Affected
Fast FAC1203R Gigabit Edition
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

A flaw has been found in Fast FAC1203R Gigabit Edition 2.0.4. Affected by this issue is the function copy_msg_element of the component Device Discovery Service. Executing a manipulation can lead to stack-based buffer overflow. The attack can be executed remote

CVSS 10.0 · Critical
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I. Basic Information for CVE-2026-96257

Vulnerability Information
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Vulnerability Title
Fast FAC1203R Gigabit Edition Device Discovery Service copy_msg_element stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in Fast FAC1203R Gigabit Edition 2.0.4. Affected by this issue is the function copy_msg_element of the component Device Discovery Service. Executing a manipulation can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Fast FAC1203R Gigabit Edition 2.0.4 cpe:2.3:a:fast:fac1203r_gigabit_edition:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-96257

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III. Intelligence Information for CVE-2026-96257

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Other References for CVE-2026-96257 (1)

Other References for CVE-2026-96257 (2)

IV. Related Vulnerabilities

Same weakness: CWE-121

V. Comments for CVE-2026-96257

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